Recoil and run-out apparatus for ordnance



New. 6, 192s. 1,690,281

A. T. DAWSON ET AL RECOIL AND RUN-OUT APPARATUS FOR ORDNANCE Filed Aug. 9, 1927 '5 sheets-sheetv Nov. 6, 1928. y 1,690,281

A. T. DAWSON El' AL REcoIL AND RUN-OUT APPARATUS FOR oRDNANcE 3 Sheets-Sheet 5 Patented* Nvifaligzjs.

`rrniatic recClp'eratorthek interior .of '-Whic y notcinrnunioate With the interior'jfojttlie 5 recoil orrbrake cylinder, that to'eayithere is" no transfer of 'liquid -froiii 4:the Vrecoilr VAccording" 'to the: invention areV yarranged f `in, f line one behind` lthe' Y other v andi the frecoll ncylinder or its piston rod,

Whichever mov'es'frelatively .tothe recupera-v tor cylinder, constitutesor ifs provided with Va rra'rr'i ,to effect `theconipression.y of thev air v Within :the lfrecuperalitcr1 'duringV the recoil "movement of vthe gun and to eitectV the run- 'oft movement of'the gu-n under? theintiuence ofthe'compressedair aft-erthefreeoi-lv inoe-` 'ment' yhas'f been completed- The said recu- Y perator cylinder is preferably arranged;l behind the recoil cylinder landattached; to the j nguncradle so "that it remains stationary' l Y 'during vthe recoilandy vrruno'u't inovernente;ofv

25 the gun.

' lrangedY in front of and'in line Withfthefj're- `Y cuperator cylinder malx'ln oneY ormizbe at-v croelshead ,slides duri-'ngr they in Which the recoil piston is situated; the

i rod fof this` piston"k projecting throghithe vfront end of' the'sa'id recoil cylinder-"and 'Y 'Y -The rear end of theair'compressing' iranien"- tere the/front end v'ottheA station'ary'sre'cuperf o ator 'cylinder through a 'sntalolegland and means of a Wall in the-said ram.l fllhfiswall"l may have a rearward prolongation forming; a cylinder forv therecept-ion ofa run-out retarding qram' the'recoil piston. Y

In a.- secondv tor-1n' the general arrangement 'nl' 'the parte Similar tothe@ aboveffde Amann rR'Evonf-iwsoifienonee :ener/rae emitir-mirarme trames, rijerrriteiwilrr or WESTMINSTER, n1\GLAND, Asegtrmrts To feri'nesj Ltr'frrfrnngrorro'nnoi Ilo'rak'e'v cylinder toithe recuperator cylinder, n i

Y nected--to the* front- ,endfofftherecuperat the "recupera-A A 10 tor 'cylinder'fa'nd the 'recoil or -l'oraike cylinder f "tachedto a crossheadWh-i ch Yis yconnectedf 'by Vlongitudinal'rods or links toflug'sjon' thel breech ring of the'gun,suitableguides'being providedy on@ the 4cradler` iipon which.'

reoil and-rim outmo'r'emen'ts ofthe gum- Carried' rrrWithin thisfrrarn there "may bea sleeve":whichcon-VV stitutes the recoilV cylinder'p'roper and With? 'being attached :t0-a 'bracketronfthe cradle."`

-' the interior of theeaid ralnrandfot there-.VLV

. cylinder s ah'dthe air compressing ram) conVst-itutedy by Vaj urear'fvtfalrd "hollow extension oif'tlie recoil Y. piston rod`v whichl iext'ensio'r'' fis connected to vav "j rod passing frefarv(afrdlyy through 'the rear end, :wallf o'ffthezreciperato Y cylinderlwlrere' the Saidy rod is*v tttaehed 11501-5 The; freleoil Ycylinder `and',"Qlffhc-s recuperator Y cylinder. g are preerably connectedltogetheiv (0 in a det-aehahler Itrannertoiv fenableracceto vbe had to .one fOr-moreiglands o th'rou'ghgwhi'ch .the :air compreesing?V ram pssl #The gland Y orglands maybe: carried ,Wholly-bythe,re-Il,

coil cylinder "or lwholly"'lny thenrectqoe'ratoriv 75VV y the" l,re coil cylinder 'carries fthe glands vvor one! 2 i-of` theglaiids permits fthe recoil` .cyl-indeed@ be l moved. away from* the l rec'ilpe'ratori .cylif gland.. or glands, withoutth liqudlfe ca "inkr from thereco'il- Cylinder.oA

f orderfthatftheysaid'invention' may 'be "clearly .undei'stood'j and: '-readily'orried finto, electg thelsame will no W loe describedmore Y Y fullyvfwith reference to '.thejsaccoinpanying Y Y f-Fi'giire .'1- is a lvert'callongitiidialSection gum- Bis part of: the cradle, C isthejre-Vl cuperator. cylinder, Disthe recoil or brake vis the rod of this piston, D? is the Aaircondi- `Vpressing rain which, during'therecoil'of theA gun, enters thefrec'uperator cylinder to corn` Ypress the vairY therein, is aV replenishing. K

tank vfor sujrnplyingy*thejrecoillcylinder D j n Y :passa-gel?? as requiredinorderto vary the i effective area of l the passager with Vliquid and is: Vthe run-out /retarding ram.1 'Y

Referrindlto Ficures'l to 4l :theair comj pressing rainrDS is arranged 1n rronto and :T7 .Iinf li'ne with theVv recuperatorcylinder C .and ati-its' 'fronti passes' through aYvcrosshe'adD4 itowhicli it isatfta'ieh'ed by nieansVv of a -nutl d4',

the' 'said'iam' hazvingfa shoulder cl3 bearingV Y against the rearqpartof the'erosshead. j This `crsshead Aisf, connected 'by twofllongitudinal frode V1325135 :to `lugs,` Alon the breech:ringY j l -of the gun and=is guidedduring` therecoil' .Y 1 -and run-outiniovernents of the gunby'ineans. fofguides BB'1 on the cradle B5 upon which' "jguidesfthe crosshead slides;

' f The recuperator cylinder K i a bracket Voni the'craldle (the aforesaid rods 2D5,fD5` passing through the vside "por-e Y 1 TherrecoilcyleinderD is constituted byY a sleeve arranged Avithinand carried by the rainA D13 -rrtlr an "annular "space i between n them, this` annular A s-pace 7communieating atits fronten-d withv fth'eireplenishing tank (formed as part ofthe crosshead)yand rcommunieating at its` Vw"realrendxwit'hlthefinterior of fthe rear `part 0f-the recoil cylinderlDby means oi'fholes d; d thereiny :There-d Dzof the; recoil piston Dlr proj ects 'throughA Lglandidz fat the' iront end offthe*cylinder"Dvand is attached: to a abracket Brion Vtheguin cradle* :The cylinder has longitudinal grooves ZfjV-idfof: VVarying' 1 cro(ss-'sectionalA area to: constitute Valife'ports 'for' *thefcontrolledfow 'of liquidrom @one sid'e'zo the piston D1 to theotherassz vper.V se; fvvell understood.

C. passes Vthrough tions "of this bracket) and is attached by means-of a-nut 3, the Vfront end of thejs'ja'i'd Y Y j recoil Vcylinder* D is connected to the. front cylinder haring a shoulderf()1 bearing against the lfront surface of theisaid bracketi "The front end' of the recuperatorcylinder @Ilias la' gland C? through which Ethe' -air compress`v Aing rain D3 enters Vthe said cylinder. and the interior of this cylinder is completelywshutfolf from the interior-of the saidfrarn" and' oil the',

which is made Vintegral .,Withthefranjl D3 and has a rearward'v prolongation cl (closedfat its Y rrear end by a screwed plugd) forming a cylinder for therreccptionoflthe aforesaid run-'out retardingfram F Which projects rearwardly frnikthe vpiston as is vWell understood.` The jrun-OutA control; effected Vcordance"Liiithfthe 1i angle Vof 'ele/ation' at Y Vv17,690,281

'cylinder to theretarding rain Vcylinder "CZ 'llhis plug valve is l'ornied onthe rear end of aurod'F3 which passes centrally through the'recoil piston rodD2 and has at its front gular adjustment"ofthegrod Fi" is prefer- 'ably effected Aautonuaticall jduring the elevation` of the gun-fhy-:suita lemeans "such-as V"those-VWell 'known v'for angular-ly'` adj Listing `la fpart appertainfing Y tothe Valve}p0'rt ofthe re- Y Referring toFigure'bj' orgbrake cylinder D is connected'. to avblockeD) 4 which isY attached to. the bracket VB2 on@ th'egun *cradle VB and carriesl thefre'plenishing, tank Fi, and the rear endl of the 'recoil Ypiston rod ND? is connected by screw threads to the aforesaidwall D? `inthe rainjDQi-:The retarding rain is4 connected pto or- `Inade integral with Ithe'said block D'and -is\,fdi'sposed in an plug Avalvel" 1j and its :operating: rodi-'1F13- gare carriecl the block 'D and the. g-roovesf'lfor controlling the flow of liquid trombone side of -the rrecoil -pist0n"D1 to thefotherf are formedin the outer .surface ofthe retarding nectedyby rods t0 lugsbn rtheegunfasg Figures l'tol, .In'other materalfrespects the-construction of recoil `and runoutappa- `ratusslievvn byFigure 5 is similar-t0 `that shew'n 'by `Figures l to 4 and-the same refers ence letters are usfed toindicat'e similar parts.

It `will -b-erobservedvthat inthe construction j 'ac 'clord-inglto; Figure 5 the recoil and runout 'l apparatus is situated below: the

j gun instead of above it vas in Figures; to 4." j ,j j L- l Inxthe construction shewn byFigure 6` the pressi-ng fram D? is .con stituted by a `hollow rearward {extension of the -recol piston-fred `Basilrthefprevious gfiguresland the air comi D2. YThis hollowramifDf is connectedltoa rod ID3 v passing -frearxvardly'through` a gland GK- in the rear endofl the lremiperator. cyllfil der C` andthe projectingfpart olfthis rod` is attached to; theff usual lug A1 on the breech ring o'the gun. The-'rear part of theV holestablish vco'I'nrnunicationYbetween the inte-r .rior 'of this ram; and the interior of the 'and the arrangementof the retarding ram F and iitsass'oeiated parts 'is substantially the saine as that described with reference to YpleteV recoil i andrunLout apparatus lconsti-I `rearwardly' extending rodi Daf andthe lug Aator cylinder during therecoil'inoveme'iit of the'gun and effecting the run-,out movement Y ofthe gun under the inuencefof the coing pressed airafterthe recoil vbeen completed.r v

Figiire "5i f 'l he 'above yn ieiitionecl l connection between .the-recoil cylinderl D" andfthe'recun peratoricylinder is of a*detachablev character (preferably by 'means of set screws' one of which is'sheivnatCx) to enable access'to be hadto theglands C2 throughwhich the aforesaid hollow air', Vcompressing fram lDS passes and "yvhichareshewn as being'ca'rriedf by the recuperator `cylinder@butv lbe bralref-cyliiider; means' V'ifoii connecting tutes one unit Whichcan be arrangedeither above vor below the gun as required V'and that` only one connection tothe gun'isyfrequiredviz, the 4connection .betvveen the` aforesaid A1 fon the breech ring ofthe gun.

Figure 7 sliowsa modified'-'arrangement'or]` ip erator cylinder diijiing'the recoil 'm'o'vement r 'of theigiinjaiid effecting?theriin-out move-- I ni'entfo i'the .gun under the :influence ',offtlie the glands' C? of Figure 6', In-`l this modified arrangementthere. Vare 'two vseparate glands one, C2, carried bythe -recuperatorcylinder C kand another, C2 F,-'ca'rried by the Vrecoil cylinder D. YThis arrangement'enables. theA recoil cylinder D tobe moved away frointhe recuperatorV cylinder C, for the j adjustment or renewal of theL packing of one-rorvboth of the glands C2, C231 Without theglli'quid: escaping from the recoil cylinder D.V A similar result `is obtained when the glands are carried` Wholly by the recoil vcylinder asv mentioned above, y

Vhat .We claim and desire to secure by Letters Patentof therUnited States,`is,;%

-1. In ordnance vrecoiland runout apparatus, the combination `with thejrecoil Vor brake cylinder and therecoil or brakefpis'ton forming thev elements of` the recoil apparatus, one of theseielements being vconnected tov the gun and the other to themgunccradle, ofaA pneumatic recuperator cylinder which' is ar'- ranged` in Vline "With-the recoil', Vor brake cylinder and theY interior 'of Which does not,`

. communicate WithA the interior of thelatter cylinder, and va rain on the recoil apparatus element ythat l moves relativelyY to said re- Acuperator cylinder, said" ram .efectingj the compression of the air Within Vsaidv recuperi-1i mvemefit has 2.7In ordnance recoil and run-outappa ratus, the combination With the recoil or brake Ycylinder and the recoil or brakel piston formin g the elements of the recoill apparatus,

one of these elements'being connected tothe gun and the other tothe guncradlefof'a pneumatic recuperator cylinder i which l is attached to the gun cradle inline With-the recoil or brake'cylinder andthe vinte'rio'rof which doesnot Vcommunicsfite with the'intef' rior ofv the latter cylinder, and Va rain' onrthe recoil apparatus element 'that moves relapistonjvorking insaid cylinder, apneiini 'r'ecii-perator: cylinder--whichjzis arrange' .Y line 'rivitlrsaid recoil-,or brake cylinder and Y tu's,"th e combinationvvith the. recoil or brake, Y cylinder,v means Vfor *connecting` said' cylinder sto'n tol saidr'am. y

',tus-the combination'vvithfthe recoilfrbrakef `withv the recuperator*cylinder` in frontof'and the' interior of'rivliichdoes Anot/"5CQininiinio iteY f ivit h `t heA interiorl ofthe latterjcylijrider, r means for connecting sai'dre'c'uperator 'cylinl c( in'ripressio`nf"ofV the 'air Within i said 'recu-` compressed air'a'fter the'`recoil'mov nienthas;4 beengcompleted, .means for connectingysaidl u ra'mvto the gun so as to move therewithfand" 99' means for connectingV the recoilor-brakepiston`to'1said ram.`

In ord' ance recoil and run-out appara1 `5 to the gun Acradle, a I'recoilf'or.brake piston@A working in saidcylinder', `apneumatic]recuperatorcylinderWhiclizisarrariged behind l and inline Withsaidfrecoilor brake Vcylinder and the interior of vvhiclidoes not ycoini`nu'ni-- V cate With thejinteriorofthe latter. cylinder, f?

i means for coniiectinggsaid`-recuperator`- cylin- "if: i :der to the guncradle, arazn for efectiiig .,tlie

compressionfof'therairWithinsaid recupe'r- Q` i ator' cylinder-i during thefreco'il movement offkk the gun' and effecting the run-out movement; of the gun undertlie influence:ofevtheJ-cornpressed air, after the recoil movement Vhas` been completed, means for l connecting said ramjto the gun sof as to inoveftherewith, 'and v Y means for 'connecting the Yrecoil vor brake pis 5. In'ordna-nce lrecoilandruliout"apparafi cylinder. andfthe pistonfworkingthereimofa vpneumaticirecuperator.cylinder-ftheintev i rior lof which does not communicate Witb`. f

vthe interior of' said recoil orbrakegcylinderf,

means for attaching said.- cylinders together'V` l' 'I in line with the other cylinder, means fm-@ @DDSC-ting 0,11A of said cylinders'to-thegun cradle,v arearwar'dextensionjf-than@k 0f; Vsaid'irecoil-,or brake piston"'said regl1wrd l extension' `constituting a ram for i efeetingilza L the`compressionofvthefair Within said re-V jg' Y a c'uperatorcylinder duringtherrecoil .inovementorA the gii'ii, and effecting therun-'out .u moyem'entoffthe gun underthe influence othecompres'sed airafter the recoil movement 139,

y u pneumatic, rreonperatol" eylndlj Ihe finte- `lror-V :of which doesmot communicate Withffc'he ,delgflneans fof connecting one of said kcylinders to the gun' Cradle, rearward extenslon reanwardfez'itension constituting a rain, for effelctlng the omnpressmn of the 'zur Wlthln n'leans Aoin oonneoting seid frod to the` gn. `so

` ARTHUR ,TREVoR-j DAWSON. Y

vononw; ,THOMAS iBUoKIT-AM. Y JAMES FLEMNG WHITE. 

